<template>
  <div class="login-container">
    <night-sky></night-sky>
    <el-form class="login-form" autoComplete="on" :model="loginForm" :rules="loginRules" ref="loginForm" label-position="left">
      <h3 class="title">管理员 欢迎你！</h3>
      <el-form-item prop="username">
        <span class="svg-container svg-container_login">
          <svg-icon icon-class="user" />
        </span>
        <el-input name="username" type="text" v-model="loginForm.username" autoComplete="on" placeholder="请输入账号" />
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password"></svg-icon>
        </span>
        <el-input name="password" :type="pwdType" @keyup.enter.native="handleLogin" v-model="loginForm.password" autoComplete="on"
          placeholder="请输入密码"></el-input>
          <span class="show-pwd" @click="showPwd"><svg-icon :icon-class="eye" /></span>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" class="btnClass" :loading="loading" @click.native.prevent="handleLogin">
          登 录
        </el-button>
      </el-form-item>
      <!-- <div class="tips">
        <span>username: admin</span>
        <span> password: admin</span>
      </div> -->
    </el-form>
  </div>
</template>

<script>
import md5 from 'js-md5'
import { isvalidUsername } from 'common/utils/validate'
import NightSky from 'base/NightSky'

export default {
  name: 'login',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!isvalidUsername(value)) {
        callback(new Error('请输入正确的用户名'))
      } else {
        callback()
      }
    }
    const validatePass = (rule, value, callback) => {
      if (value.length < 5) {
        callback(new Error('密码不能小于5位'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: '',
        password: ''
      },
      eye: 'eye',
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePass }]
      },
      loading: false,
      pwdType: 'password'
    }
  },
  components: { NightSky },
  methods: {
    showPwd() {
      if (this.pwdType === 'password') {
        this.pwdType = ''
        this.eye = 'openeye'
      } else {
        this.pwdType = 'password'
        this.eye = 'eye'
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          const params = {
            username: this.loginForm.username.trim(),
            password: md5(this.loginForm.password)
          }
          this.$store.dispatch('Login', params).then(() => {
            this.loading = false
            this.$router.push({ path: '/' })
          }).catch((e) => {
            // this.$message.error('登录失败，请检查网络！')
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
$bg:#2d3a4b;
$light_gray:#eee;

/* reset element-ui css */
.login-container {
  .btnClass {
    width:100%;
    background-color:rgba(64, 158, 255, 0.3);
    border-color: rgba(64, 158, 255, 0.5);
    &:hover {
      background-color:rgba(64, 158, 255, 0.5);
    }
  }
  .el-input {
    display: inline-block;
    height: 47px;
    width: 80%;
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      &:-webkit-autofill {
        -webkit-box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: #fff !important;
      }
    }
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}

</style>

<style rel="stylesheet/scss" lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;
.login-container {
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: $bg;
  .login-form {
    max-width: 520px;
    width:75%;
    padding: 35px 35px 15px 35px;
    border-radius: 5px;
    margin: 120px auto;
    z-index: 1;
    background-color: rgba(116, 185, 255,0.3);
  }
  // .tips {
  //   font-size: 14px;
  //   color: #fff;
  //   margin-bottom: 10px;
  //   span {
  //     &:first-of-type {
  //       margin-right: 16px;
  //     }
  //   }
  // }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
    &_login {
      font-size: 20px;
    }
  }
  .title {
    font-size: 26px;
    font-weight: 400;
    color: $light_gray;
    margin: 0px auto 40px auto;
    text-align: center;
    font-weight: bold;
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
